This three-part political thriller follows the catastrophic chain of events leading up to World War I from the assassination of Archduke Franz Ferdinand on 28 June 1914 to Britain's declaration of war on Germany 37 days later. This tense and gripping miniseries set among the corridors of power in Whitehall and Berlin tracks the unfolding crisis through the eyes of leading politicians and civil servants struggling to prevent the world's first global war. 37 Days unlocks the mystery of the war s origins, overturning assumptions about its inevitability, demonstrating that World War One was neither a chance happening nor was it a foregone conclusion.

Watch 37 Days season 1 episode 3 (S01E03)

The last hours of peace. With the continental powers pushed to the brink, Sir Edward Grey seems unsure of whether to keep Britain out of the conflict. Desperate negotiations, resignations and a battle of wills in the Cabinet reach a crescendo with Germany's ultimatum to Belgium. Which way will Britain go?

Watch 37 Days season 1 episode 2 (S01E02)

War in Europe is becoming a real possibility. Under pressure from the cabinet, the British foreign secretary unravels a tangled web of intrigue between Austria, Germany, Russia and France, while the German military command conspires to force the Kaiser's hand. Who will gain the upper hand?